{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["machanical property", "manufacturing standard", "manufacturing process", "application", "enabling technology", "biomedical"], "input": "Nanohardness tests show that the top of layer n is harder than the bottom of layer n+1 due to grain boundary strengthening ."}
{"machanical property": [], "manufacturing standard": [], "manufacturing process": [], "application": [], "enabling technology": [], "biomedical": []}